Amazon.com is showing a preorder listing for "Lucy Moves To NBC" for a March 20, 2012 release date. The total running time is 120 mins, no additional info is shown at this time.

http://www.amazon.com/Lucille-Ball-Special-Lucy-Moves-NBC/dp/B006JSY3VE/ref=sr_1_1?s=movies-tv&ie=UTF8&qid=1325455457&sr=1-1

http://blog.sitcomsonline.com/2012/02/digital-digest-mpi-to-finish-lucille.html